LTE Call Flow - Wireshark (Pcap) analysis of LTE UE Attach 

Brilliant stuff__! This is the only resource where you'll see flow of messages & their purpose together with interface & protocol. Beautifully explained. Much appreciated

This is the best explanation of LTE call flow using Wireshark capture I've ever seen, this is immensely helpful!

Great Explanation. Keep up the good work, and I look forward for more videos from you

Greatest explanation.. Thanks a lot sir.. Got much better idea now.. Pls continue posting more videos.. Really a great explanation. Expecting more videos from you.

Very good detailed presentation, I have been searching for something like this for a while. Thanks.

Simply the best. It comes natural. Very coincise

thank you for sharing - i am just starting my LTE journey and this was very helpful

Excellent !! Well explained step by step with required info !!!

Expecting more videos from you .. very Good explanation with samples ...

Wonderful. Thank you very much for the lucid explanation.

ultimate lte attach explained , many thanks

Good explanation in a simple way . . keep up the good work ....thanks

Very well put together. Thank you.

This is very useful and best video on the RU-vid pf LTE Attach call flow

This video is remarkable! Kudos to you

Very precise and detailed explanation, it has helped me greatly.

Excellent explanation, it's very clear and easy to understand. Please post more videos . Thanks for the information. 👍

Excellent video Sir!!! Many many thanks!!! It would be very very helpful.

Excellent Master. Admirable. I feel motivated to learn more. Congratulation

amazing explained sir with log ....thanks, like this please make RACH procedure also.......

Great thank you...expect more videos like this..

thank you brother .. it's really useful :)

The best explanation 🎉🎉🎉!

Thank you. wonderful explanation.

Best explanation for attach procedure thanks sir

Great explanation!

Loved it !!

very well explained sir thank u :)

Hi Surya, Nice explanation. Thank You.

This is really good Video with Wireshark Trace analysis. Request you to put similar video for VoLTE end to end call with wireshark trace so it would be great help

thanks dear for your help and explanation

Very well explained 👏👌👍

This is awesome! Do you happen to have another video that includes a purge request & answer in a s1ap trace & discussing important key factors?

Thank you. Excellent explanation and very helpful in understanding the concepts. Can you please guide how the roaming scenarios work while mobile is moving from one operator to another and how S8 interface PGW is selected. Thanks

its much helpful..thanks sir

very well explained

nice explanation

Thanks. Well explained.

Very usefully explanation. Can you please share also for Gx/Gy flows a similar one? Best regards!

Best explanation, Thanx,

Good information,tq u

Very Good explanation. Would you please share the Wireshark packets capture, please. Would like to check to further understand the process. Thank you in advance.

At 11:47 it is mentioned that RAT/VPLMN/IMSI info is transferred in the in the AIR request, but later at 14:18 the same info (RAT/VPLMN/IMSI) is getting transferred in the ULR. I think the later case is true .

superb

A very good explanation.!. Will be very much helpful if you provide the .pcap files. Thanks in advance.

Can we get similar type of video for IMS to IMS calls with call flows explanation and examples....

Very very good video. I just have one confusion, in Initial Context SetUp Message, MME transfers the SGW GTP TEID and SGW IP to ENB for ERAB set up. So it is for user plane. And in Initial Context Setup Response message, eNB transfers GTP TEID and IP of EnodeB. Then why in last step, SGW informs in Modify Bearer Response message about it's GTP TEID and IP address? MME shall know it in initial Create Session Response message i guess? Thanks for your answer in advance

Thank u

Dear Sir, thanks for the video. Could you tell me how was the capture gathered?

Thanks

Master peice

Very useful and nice explanation Can someone tell me in which message the UE gets its IP address from the PGW. Is it from the Create Session Response?

thank you, one query The S1 AP ID is unique in the ENB, can it possible for another ENB to use the same ID? if not, how the other ENB know this specific S1 AP ID is already used in the NW?

During inter 3GPP handovers which are the interfaces are created between release 8 SGSN to connect with LTE EPC SGW & MME? A. S3/S4 B. S1/S5 C. All of Above D.None of the above

25:55 slip of the tongue. It is Attach Complete and not Attach Accept. But, overall, an amazing quick byte to brush up before interviews.

The eNode transmite e Responee message to a preamble using which of the following? Select the best 1 Pot Channel 2 Downlink Control Channel and Shared Channel 3 Shared Channel 4 Paging Channel 5 Data Channel

❤

I always have this doubt: what is the "initial UE message"? I mean IP of phone / device or what exactly certain numbers or kind of data UE send to MME?

Please make same for enodeb handover procedure

will u provide the wiresharks log from node

How do I know that UE attached in 4G,2G or 3G? Can you tell me by looking in this flow?

Can u upload x2HO,S1HO,csfb,srvcc ,volte,MIMO,CA, wireshark videos

PCRF is not involved in the LTE initial attach?

When i analyzed my pcap file, i get problem that MME closed sctp connection because enodeB(s1aptester) sent ICMP message to MME instead of HEART ACK. do you know why?

Please make video on python & c Programming ,which is used in protocol development /testing with interview question in C.

can you upload tau/rau procedure pcap analysis?

where to find this pcap file

How can we view these analysis in wire shark , as I have pcap file but I am not getting those messages can any one help

Can we have the .pcap file please ?

Please share the same on IMS call flow

please add on PCRF call flow with it, thanks

GOOD EXPLABATION BUT PLS STOP DRINKING WATER IN BETWEEN

in which msg PGW allocates IP address to UE

Awesome

can you share the sample pcap please?

Attach Accept msg sent by MME to UE and not from UE to MME.

bro call logs are not clear

Nothing is visible

Nice explanation, but it seems that instructor is speaking while with eating something, and it sounds very annoying.

Would you please stop slurping in between your videos .. It's so irritating . Otherwise from content point of view .. your work is nice .

Good tutorial, but the periodic slurping of whatever he's drinking is driving me nuts 😢.